Light is made up of waves of electromagnetic energy. It is the visible portion of the electromagnetic spectrum or electromagnetic waves that we can see. Visible light is only a tiny part of the electromagnetic spectrum. Light energy is the only form of energy we can see. Light from the sun helps plants grow and makes food for us to enjoy.

Because electricity is the flow of electrons, or negatively charged particles in atoms, conductors are necessary when trying to transfer energy through electrical currents. Conductors allow electrons to flow easily, which in turn transmits energy. Someone would not want to block electrons from traveling whatsoever when trying to create an electrical current - materials that do this would be called insulators.

Metal is the best conductor of heat because its atoms are arranged in a way that allows electrons to travel freely, meaning they can pass energy more quickly.

The three ways heat can be moved or transferred are through conduction, radiation, and convection. Conduction is heat transfer between two objects that are touching. Radiation is the heat transfer through air or space by electromagnetic waves. Convection is heat transfer by a current of water or air.

A toaster is an example of how a device can convert electrical currents into heat energy. The toaster is plugged into the electrical outlet and electricity flows through the cord and into the heating elements of the toaster. The toaster than warms and crisps the food item placed inside. The heating coils warm the bread as a result of electrical currents being transferred.

Reflection is the term used to describe light bouncing off of an object. When the light touches an object that is smooth and shiny, it will reflect at the same angle at which it hit the surface of the object. Refraction describes the bending of a light ray when it enters a medium of a different speed. Infrared light refers to a type of light rather than the behavior of light.

Each of the examples in this question are scenarios in which sound would be transferred because they all cause vibrations that travel through a medium.

Sound waves must travel through a medium. This medium can be a solid, liquid, or gas. The sound waves move through each of these mediums by vibrating the molecules in the matter. Sound travels fastest through solids. Molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to move more quickly through it.

Reflection is the term used to describe light bouncing off of an object. When the light touches an object that is smooth and shiny, it will reflect at the same angle at which it hit the surface of the object. Refraction describes the bending of a light ray when it enters a medium of a different speed. Infrared light refers to a type of light rather than the behavior of light.

The three ways heat can be moved or transferred are through conduction, radiation, and convection. Conduction is heat transfer between two objects that are touching. Radiation is the heat transfer through air or space by electromagnetic waves. Convection is heat transfer by a current of water or air.